... (C) 1986 The Chemical Society of Japan Lead Promoted Barbier-Type Reaction of Propargyl Bromide with Aldehydes Hideo TANAKA, Takeshi HAMATANI, Shiro YAMASHITA, and Sigeru TORII* Department of Industrial Chemistry, School of Engineering, Okayama University, Okayama 700 ... Table 1. Barbier-Type Reaction in a Pb/Bu4NBr/Me3SiCl/DMF References 1) For example: a) K. Uneyama, N. Kamaki, A. Moriya, and S. Torii, J. Org. Chem., ...